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NYJLGD

Right Angled Triangular Prism, N-BK7 (K9) Optical Components Glass for Precision Instruments Excellent, Physics, Light Refraction & Wavelength Experiments

  • Based on 20 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Sep 28
Order within 15 hours and 57 minutes
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Size: 20MM


Features

  • Material: K9 Cristal
  • Size:20mm
  • Excellent for physics classrooms. Ideal for redirecting beams of light at a 90 degree angle, as a retro-reflector, as well as for a variety of other experiments in optics, light refraction, spectrometry and wavelengths
  • Good for optics lessons or optics science projects
  • Right Angle Prisms are typically used to bend image paths or for redirecting light at 90

Description

Material: K9Surface quality: 60/40

Package Dimensions: ‎5.28 x 4.06 x 1.26 inches


Item Weight: ‎0.317 ounces


Manufacturer: ‎NYJLGD


Item model number: ‎zj-th-20


Date First Available: ‎June 6, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Works perfectly well.
Size: 10MM
Very nice. high quality and work just like it should.
Reviewed in the United States on June 25, 2026 by Terry
    • Measurement Mirrors
Size: 20MM
I work with a company as a salesman for precision measurement instruments. Sometime, because the system is vision based, to get a side view measurement, a mirror such as this one can be useful. So far have found it to be accurate and offer the help I was looking for to demonstrate to customers.
Reviewed in the United States on April 8, 2025 by MKEK0305
    • Excellent optical quality
Size: 20MM
I bought the 20mm to help with a solar projection project for the 2024 eclipse. The optical clarity is excellent. For giggles I'm going to order one or two more.
Reviewed in the United States on March 30, 2024 by kevin
    • Missing parts!
Size: 15MM
Package is missing a prism! Only 1 in package.
Reviewed in the United States on March 30, 2024 by Robert Freeman
    • Very pretty little thing
Size: 20MM
Review Image by D Radcliffe
Review Image by D Radcliffe
Well, it is a pretty little thing. 20 mm is very small. And it is only one prism rather than two as others have noted. So the picture is deceiving. But the reflection is very good. Very high quality optics. I almost hate to touch the thing with my fingers. Toddler had no such limitations. At this small size it is easy to store. It's not a bad deal for the price, although it does look like it should be a two pack which seems like a better deal. So maybe not a wonderful deal. They really should change that first picture. ... show more
Reviewed in the United States on February 21, 2026 by D Radcliffe
    • The pictures show two prisms but only one is actually on the package.
Size: 10MM
It works perfectly, but the image on the page is not accurate.
Reviewed in the United States on May 11, 2023 by Victor Bogado da Silva Lins

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